Parent: Alcidae (Auks)

└─ Brachyramphus (Marbled murrelets)

└─── Brachyramphus brevirostris (Kittlitz's murrelet)

└─── Brachyramphus marmoratus (Marbled murrelet)

└─── Brachyramphus perdix (Long-billed murrelet)